CN114307220A - Energy-saving double-cavity double-layer condensation evaporator for pure nitrogen equipment - Google Patents
Energy-saving double-cavity double-layer condensation evaporator for pure nitrogen equipment Download PDFInfo
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- CN114307220A CN114307220A CN202111475616.0A CN202111475616A CN114307220A CN 114307220 A CN114307220 A CN 114307220A CN 202111475616 A CN202111475616 A CN 202111475616A CN 114307220 A CN114307220 A CN 114307220A
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 30
- 230000005494 condensation Effects 0.000 title claims abstract description 14
- 238000009833 condensation Methods 0.000 title claims abstract description 14
- 238000001704 evaporation Methods 0.000 claims abstract description 73
- 230000008020 evaporation Effects 0.000 claims abstract description 67
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 239000007789 gas Substances 0.000 claims abstract description 17
- 238000000926 separation method Methods 0.000 claims abstract description 4
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 8
- 230000008676 import Effects 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
An energy-saving double-cavity double-layer condensation evaporator for pure nitrogen equipment comprises two independent heat exchange units, a first layer of evaporation cylinder, a second layer of evaporation cylinder, an air inlet, a condensate outlet, a non-condensable gas outlet, a liquid inlet, a liquid steam outlet, a liquid discharge outlet, a separation sealing head and a pressure equalizing pipe, wherein the heat exchange units are respectively arranged in the first layer of evaporation cylinder and the second layer of evaporation cylinder; the first layer of evaporation cylinder and the second layer of evaporation cylinder are separated by the separation end socket; the pressure equalizing pipe is positioned on the separating sealing head, the invention has the beneficial effects of improving the heat transfer efficiency and reducing the energy consumption, and is mainly used in pure nitrogen equipment.
Description
Technical Field
The invention relates to an energy-saving double-cavity double-layer condensation evaporator for pure nitrogen equipment, belonging to the field of dividing wall type heat exchange equipment.
Background
The condensing evaporator is used in pure nitrogen equipment, and is a process of separating nitrogen from air by utilizing the difference of physical properties of components in the air. The heat exchange unit is of a plate-fin type, and cold and hot fluids in the two channels can conduct good heat transfer through the fins and the partition plates. The condensing evaporator is generally placed at the top of the rectifying tower, nitrogen gas rising from the rectifying tower is condensed in the heat exchange unit, and liquid air is evaporated in the heat exchange unit. The important function is to perform heat exchange between the liquid air and the nitrogen gas.
However, because the evaporation temperature of each component of oxygen, nitrogen and argon in the liquid air is different, the component change in the heat exchange unit is caused along with the increase of the height and the layer number of the heat exchange unit in the evaporation process, so that the heat transfer temperature difference change is very large, and the heat exchange requirement can be met only by increasing the heat exchange area.
With the social progress, the energy shortage is getting more and more serious, and the energy consumption requirement is more and more emphasized. Therefore, an energy-saving double-cavity double-layer condensation evaporator for pure nitrogen equipment is provided.
Disclosure of Invention
The invention provides an energy-saving condensing evaporator for pure nitrogen equipment, and aims to solve the problem that the diameter of a rectifying tower is not matched due to small heat transfer temperature difference and low liquid level of a heat exchange unit. The invention relates to an energy-saving double-cavity double-layer condensation evaporator for pure nitrogen equipment, which comprises an evaporator cylinder body, wherein the evaporator cylinder body consists of an upper layer of evaporator cylinder body and a lower layer of evaporator cylinder body which are independent, a first layer of evaporation cylinder body and a second layer of evaporation cylinder body are separated by a separation end socket, the first layer of evaporation cylinder body and the second layer of evaporation cylinder body have the same size and structure, the corresponding positions in the first evaporation cylinder body and the second evaporation cylinder body are respectively provided with a liquid air evaporation outlet, a liquid air inlet, a nitrogen inlet, a liquid discharge port, a condensate outlet, a noncondensable gas outlet and a heat exchange unit, the heat exchange unit is respectively arranged in the middle positions of the first evaporation cylinder body and the second evaporation cylinder body, the heat exchange unit is respectively connected with the nitrogen inlet, the condensate outlet and the noncondensable gas outlet, and the liquid air evaporation inlet, the liquid discharge port and the liquid air evaporation outlet are respectively arranged on the first evaporation cylinder body and the second evaporation cylinder body, and a pressure equalizing pipe is also arranged in the first evaporation cylinder.
Preferably, the method comprises the following steps: the nitrogen inlet and the liquid-air inlet are respectively arranged on the side body of the first layer evaporation cylinder close to the upper end of the second layer evaporation cylinder, the nitrogen inlet is introduced to the upper portion of the heat exchange unit through the guide pipe, the condensate outlet and the non-condensable gas outlet are respectively arranged at the bottom of the heat exchange unit and are discharged from the middle position of the first layer evaporation cylinder and the second layer evaporation cylinder opposite to the nitrogen inlet and the liquid-air inlet through the guide pipe, and the liquid discharge port is arranged on the same side of the side body of the first layer evaporation cylinder and the second layer evaporation cylinder as the nitrogen inlet and the liquid-air inlet.
Preferably, the method comprises the following steps: the liquid-air evaporation outlet on the first evaporation cylinder is arranged at the top of the first evaporation cylinder, and the liquid-air evaporation outlet on the second evaporation cylinder is arranged on the side body of the second evaporation cylinder and is positioned at the same side as the condensate outlet and the non-condensable gas outlet.
Preferably, the method comprises the following steps: and valves are arranged on the pipeline of the condensate outlet and the condensate inlet.
Preferably, the method comprises the following steps: the non-condensable gas outlet is inclined upwards by 30-60 degrees relative to the horizontal direction of the heat exchange unit.
Preferably, the method comprises the following steps: the condensate outlet is inclined downwardly 30-60 ° relative to the horizontal of the heat exchange unit.
Compared with the prior art, the invention has the following advantages: firstly, the heat exchange requirement is met without additionally increasing the heat exchange area, and the manufacturing cost is reduced; condensate is convenient to discharge quickly, the reduction of heat exchange capacity caused by liquid seal is avoided, the heat exchange efficiency is effectively improved, and energy consumption is saved; the same structure is designed into completely consistent structural parameters, so that the organization and production are facilitated, and the production cost is saved; fourthly, different required working conditions are established by adjusting the opening of the valve, and the adjusting range is wide.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in detail below with reference to fig. 1. The invention provides a technical scheme that: the utility model provides a pure nitrogen equipment is with energy-saving double-chamber double-deck condensation evaporimeter, it includes the evaporimeter barrel, the evaporimeter barrel comprises upper and lower two-layer independent evaporimeter barrel, separates first, two layers of evaporation barrels through separating the head between the two, and big or small structure is the same between first evaporation barrel and the second evaporation barrel, the corresponding position of first evaporation barrel and second evaporation barrel inside is equallyd divide and is equipped with liquid air evaporation export 1, liquid air import 3, nitrogen gas import 4, leakage fluid dram 6, condensate export 15, noncondensable gas export 16, heat transfer unit 5 respectively, heat transfer unit 5 sets up the intermediate position at first evaporation barrel and second evaporation barrel respectively, is connected with nitrogen gas import 4, condensate export 15, noncondensable gas export 16 on heat transfer unit respectively to be equipped with liquid air import 3 on first evaporation barrel and second evaporation barrel respectively, The liquid outlet 6 and the liquid-air evaporation outlet 1 are arranged in the first evaporation cylinder, and a pressure equalizing pipe is further arranged in the first evaporation cylinder.
The nitrogen inlet 4 and the liquid-air inlet 6 are respectively arranged on the side body of the first layer evaporation cylinder close to the upper end of the second layer evaporation cylinder, the nitrogen inlet 4 is introduced to the upper portion of the heat exchange unit 5 through a guide pipe, the condensate outlet and the non-condensable gas outlet are respectively arranged at the bottom of the heat exchange unit and are discharged from the middle positions of the first layer evaporation cylinder and the second layer evaporation cylinder opposite to the nitrogen inlet 4 and the liquid-air inlet 6 through the guide pipes, and the liquid discharge port is arranged on the side body lower portion of the first layer evaporation cylinder and the second layer evaporation cylinder and is at the same side with the nitrogen inlet 4 and the liquid-air inlet 6.
The liquid-air evaporation outlet 1 on the first evaporation cylinder is arranged at the top of the first evaporation cylinder, and the liquid-air evaporation outlet 1 on the second evaporation cylinder is arranged on the side body of the second evaporation cylinder and is positioned at the same side as the condensate outlet 15 and the non-condensable gas outlet 16.
And valves are arranged on the condensate outlet 15 and the liquid inlet 6 on pipelines. The non-condensable gas outlet 16 is inclined upwardly by 30-60 deg. relative to the horizontal of the heat exchange unit 5. The condensate outlet 15 is inclined downwardly 30-60 deg. with respect to the horizontal of the heat exchange unit 5.
Through the angle of condensate outlet, noncondensable gas export slope, effectively improve the emission effect of condensate, improve heat exchange efficiency, practice thrift the efficiency.
The double-cavity double-layer condensation evaporator structure is arranged, so that the possibility of reducing the heat transfer temperature difference is reduced, the heat exchange efficiency is effectively improved, and the energy is saved.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a pure nitrogen equipment is with energy-saving two-chamber double-deck condensation evaporimeter, it includes the evaporimeter barrel, its characterized in that: the evaporator barrel comprises an upper layer of evaporator barrel and a lower layer of evaporator barrel which are independent, the first layer of evaporator barrel and the second layer of evaporator barrel are separated by a separation seal head, the first layer of evaporator barrel and the second layer of evaporator barrel are identical in size and structure, the corresponding positions inside the first layer of evaporator barrel and the second layer of evaporator barrel are equally divided into a liquid-air evaporation outlet (1), a liquid-air inlet (3), a nitrogen inlet (4), a liquid discharge port (6), a condensate outlet (15), a non-condensable gas outlet (16) and a heat exchange unit (5), the heat exchange unit (5) is arranged in the middle of the first layer of evaporator barrel and the second layer of evaporator barrel respectively, the heat exchange unit is connected with the nitrogen inlet (4), the condensate outlet (15) and the non-condensable gas outlet (16), and the liquid-air inlet (3), the liquid discharge port (6) and the second layer of evaporator barrel are arranged on the first layer of evaporator barrel and the second layer of evaporator barrel respectively, The liquid-air evaporation outlet (1) is internally provided with a pressure equalizing pipe.
2. The energy-saving double-cavity double-layer condensation evaporator for the pure nitrogen equipment as claimed in claim 1, wherein: nitrogen gas import (4) and liquid air inlet (6) set up respectively in first layer evaporating drum and second floor evaporating drum lean on the upper end side on one's body, wherein nitrogen gas import (4) introduce to the top of heat transfer unit (5) through the draught tube, condensate outlet and noncondensable gas export all set up in the heat transfer unit bottom respectively through the draught tube from first layer evaporating drum and second floor evaporating drum for nitrogen gas import (4) and the contralateral middle part position of liquid air inlet (6) discharge, the leakage fluid dram sets up in the side of first layer evaporating drum and second floor evaporating drum below and nitrogen gas import (4) and liquid air inlet (6) homonymy.
3. The energy-saving double-cavity double-layer condensation evaporator for the pure nitrogen equipment as claimed in claim 1, wherein: and the liquid-air evaporation outlet (1) on the first evaporation cylinder is arranged at the top of the first evaporation cylinder, and the liquid-air evaporation outlet (1) on the second evaporation cylinder is arranged on the side of the second evaporation cylinder and is positioned at the same side as the condensate outlet (15) and the noncondensable gas outlet (16).
4. The energy-saving double-cavity double-layer condensation evaporator for the pure nitrogen equipment as claimed in claim 1, wherein: and valves are arranged on the condensate outlet (15) and the liquid inlet (6) on the pipelines.
5. The energy-saving double-chamber double-layer condensation evaporator for pure nitrogen plant according to claim 1 or 3, characterized in that the non-condensable gas outlet (16) is inclined upwards by 30-60 ° with respect to the horizontal direction of the heat exchange unit (5).
6. The energy-saving double-cavity double-layer condensation evaporator for pure nitrogen equipment according to claim 1, 3 or 4, characterized in that: the condensate outlet (15) is inclined downwardly by 30-60 ° with respect to the horizontal direction of the heat exchange unit (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111475616.0A CN114307220A (en) | 2021-12-06 | 2021-12-06 | Energy-saving double-cavity double-layer condensation evaporator for pure nitrogen equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111475616.0A CN114307220A (en) | 2021-12-06 | 2021-12-06 | Energy-saving double-cavity double-layer condensation evaporator for pure nitrogen equipment |
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| CN114307220A true CN114307220A (en) | 2022-04-12 |
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| CN202111475616.0A Pending CN114307220A (en) | 2021-12-06 | 2021-12-06 | Energy-saving double-cavity double-layer condensation evaporator for pure nitrogen equipment |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0587445A (en) * | 1991-09-30 | 1993-04-06 | Nippon Sanso Kk | Condensate evaporator and circuit therefor |
| CN102442647A (en) * | 2011-09-30 | 2012-05-09 | 浙江新锐空分设备有限公司 | Method for preparing high-purity oxygen from liquid oxygen |
| CN203068914U (en) * | 2013-01-24 | 2013-07-17 | 开封市开利空分设备有限公司 | High purity nitrogen production device |
| KR101343466B1 (en) * | 2013-08-12 | 2014-01-15 | 윤서영 | Absorbent refrigeration using middle warm water |
| CN107062800A (en) * | 2017-04-21 | 2017-08-18 | 上海启元特种气体发展有限公司 | The method and its device of a kind of superpure nitrogen dehydrogenation |
| CN207180101U (en) * | 2017-07-31 | 2018-04-03 | 福建雪人股份有限公司 | A kind of condensation evaporation equipment |
| CN207785982U (en) * | 2017-09-11 | 2018-08-31 | 上海启元空分技术发展股份有限公司 | A kind of and direct-connected condenser/evaporator of rectifying column |
| CN108731376A (en) * | 2018-04-18 | 2018-11-02 | 衢州杭氧气体有限公司 | A kind of argon gas production technology and its production line |
| CN214469455U (en) * | 2020-12-29 | 2021-10-22 | 德龙钢铁有限公司 | Air separation double-layer main condensation evaporator capable of being started in cold state rapidly |
-
2021
- 2021-12-06 CN CN202111475616.0A patent/CN114307220A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0587445A (en) * | 1991-09-30 | 1993-04-06 | Nippon Sanso Kk | Condensate evaporator and circuit therefor |
| CN102442647A (en) * | 2011-09-30 | 2012-05-09 | 浙江新锐空分设备有限公司 | Method for preparing high-purity oxygen from liquid oxygen |
| CN203068914U (en) * | 2013-01-24 | 2013-07-17 | 开封市开利空分设备有限公司 | High purity nitrogen production device |
| KR101343466B1 (en) * | 2013-08-12 | 2014-01-15 | 윤서영 | Absorbent refrigeration using middle warm water |
| CN107062800A (en) * | 2017-04-21 | 2017-08-18 | 上海启元特种气体发展有限公司 | The method and its device of a kind of superpure nitrogen dehydrogenation |
| CN207180101U (en) * | 2017-07-31 | 2018-04-03 | 福建雪人股份有限公司 | A kind of condensation evaporation equipment |
| CN207785982U (en) * | 2017-09-11 | 2018-08-31 | 上海启元空分技术发展股份有限公司 | A kind of and direct-connected condenser/evaporator of rectifying column |
| CN108731376A (en) * | 2018-04-18 | 2018-11-02 | 衢州杭氧气体有限公司 | A kind of argon gas production technology and its production line |
| CN214469455U (en) * | 2020-12-29 | 2021-10-22 | 德龙钢铁有限公司 | Air separation double-layer main condensation evaporator capable of being started in cold state rapidly |
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Application publication date: 20220412 |
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